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Finding the Fourth Proportional to 1,463,722.80, 2,192,473.80 and 1,214,890.80

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Solution

The fourth proportional to 1,463,722.80, 2,192,473.80 and 1,214,890.80 is: 1,819,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463,722.80 : 2,192,473.80 = 1,214,890.80 : x
  2. Step 2: Convert to fraction form
    1,463,722.80/2,192,473.80 = 1,214,890.80/x
  3. Step 3: Cross multiply
    1,463,722.80x = 2,192,473.80 × 1,214,890.80
  4. Step 4: Simplify right side
    1,463,722.80x = 2,663,616,248,861.04
  5. Step 5: Solve for x
    x = 2,663,616,248,861.04/1,463,722.80
  6. Step 6: Final answer
    x = 1,819,754.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.